EP 1679546 A1 20060712 - Focus control method and focus control apparatus
Title (en)
Focus control method and focus control apparatus
Title (de)
Schärfekontrolle Verfahren und Vorrichtung
Title (fr)
Procédé et appareil de mise au point
Publication
Application
Priority
JP 2005003070 A 20050107
Abstract (en)
In a focus control method of acquiring focus information a plurality of times while moving a focus lens (3), and determining an in-focus position on the basis of the acquired focus information, whether the focus lens (3) is to be moved toward the infinite end or the closest end is determined on the basis of a focus lens position, the focus information is acquired while moving the focus lens in the decided direction, the focus lens (3) is stopped by the control unit (15) on the basis of the acquired focus information, and the focus lens (3) is started by the control unit (15) from the stop position in a reverse direction.
IPC 8 full level
G02B 7/10 (2006.01); G02B 7/28 (2006.01); G02B 7/36 (2006.01); G03B 13/36 (2006.01); H04N 5/232 (2006.01); H04N 101/00 (2006.01)
CPC (source: EP KR US)
G02B 7/102 (2013.01 - EP KR US); G02B 7/365 (2013.01 - EP KR US); G03B 3/10 (2013.01 - KR); G03B 13/36 (2013.01 - EP KR US); H04N 23/673 (2023.01 - EP US); H04N 23/959 (2023.01 - KR); G03B 2205/0053 (2013.01 - KR)
Citation (applicant)
- US 5115262 A 19920519 - KOMIYA YASUHIRO [JP]
- EP 1608156 A2 20051221 - CANON KK [JP]
Citation (search report)
- [XA] US 5115262 A 19920519 - KOMIYA YASUHIRO [JP]
- [PX] EP 1608156 A2 20051221 - CANON KK [JP]
- [A] US 5913082 A 19990615 - ONODA HITOSHI [JP]
- [A] EP 0961148 A2 19991201 - CANON KK [JP]
- [XDA] PATENT ABSTRACTS OF JAPAN vol. 2002, no. 07 3 July 2002 (2002-07-03)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1679546 A1 20060712; EP 1679546 B1 20141224; CN 100397132 C 20080625; CN 1800900 A 20060712; JP 2006215546 A 20060817; JP 4684896 B2 20110518; KR 100829469 B1 20080516; KR 20060081364 A 20060712; US 2006152617 A1 20060713; US 7626631 B2 20091201
DOCDB simple family (application)
EP 06100107 A 20060105; CN 200610005717 A 20060106; JP 2006003086 A 20060110; KR 20060001689 A 20060106; US 32681406 A 20060106